In 1953, he detected what they identified as ‘smooth’ radiation – radiation that could be a mixture of billed particles and X-ray photons, termed so since it was simply absorbed while in the atmosphere – during the auroral locations higher than 60 km. Innovative: Astronomers get in touch with stars https://radiationzonefacts30371.bloggazza.com/33653013/the-smart-trick-of-radiation-zone-hiroshima-that-no-one-is-discussing